JNTU
JNTU B.Tech IV AUTOMATION IN MANUFACTURING Previous Question Paper (May - 2019 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
PART - A
Discuss the Degree of automation.
Answer
The degree of automation refers to the level of control and decision-making performed by machines compared to human operators. It is a spectrum ranging from manual operation to fully automated systems where machines handle all processing, material handling, and quality control tasks without human intervention.
How Automation used in machine tools?
Answer
Automation in machine tools is used to increase production rates and precision. It involves the use of Numerical Control (NC), Computer Numerical Control (CNC), and Programmable Logic Controllers (PLC) to automate tool path movements, speed/feed changes, and automatic tool changing, thereby reducing cycle times and human error.
Write the automatic to changing methods.
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Write the analysis of single station system.
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List out the types of flexible assembly lines.
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Define the following terms related to line balancing:
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What are the types of AGVs?
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What are the types of AS/RS systems?
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Explain the types of Data communication systems.
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What is the software configuration of BPE?
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PART - B
What is automation? Discuss various strategies of automation.
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Explain about information processing cycle in automated manufacturing environment.
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What are the basic reasons for automating a Production system?
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In factory operations, list the situations where manual labor is usually preferred over automation?
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Calculate the line efficiency for a transfer line with one storage buffer. The line has 10 workstations, each with a probability of breakdown of 0.02. The cycle time of the line is 1 min. and each time a breakdown occurs, it takes exactly 5min. to make repairs. The line is to be divided into two stages by a storage bank so that each stage will consist of five stations. Compute the efficiency of the two-stage line for various buffer capacities.
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With neat diagrams explain the functioning of various types of Transfer Mechanisms.
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Explain the design of parts for feeding and orienting in automated assembly environment.
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Explain in detail, the considerations for Assembly Line Design.
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Explain in detail with one case study the economic analysis of assembly process.
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A moving belt is used for a product whose content time = 33.0min. Production rate = 45/hr the length of each station = 1.75 min and manning level = 1.0. it is expected that the delay will be about 0.08 or slightly high. Uptime reliability = 96%. Time lost for repositioning each cycle is 6sec.
a) Determine the number of stations required for the line
b) If tolerance time were 1.5 times the cycle time determine the belt speed and spacing between the parts for the line.
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Explain the upper bound approach and lower bound approach in analyzing transfer lines with storage buffer with an example?
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How the AS/RS system is recommended for modern industries. Explain any one system in detail. (Explain taking specific example or industry).
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What functions are performed by Materials Handling and Storage Systems in an FMS?
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Explain about the interfacing handling and storage with manufacturing related examples.
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What are the different control systems used in Automation?
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What types of Sensors are used For Measuring Different Parameters?
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What is Actuator ? Explain about different types of Actuators.
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What is meant by a Re-engineering? Explain the reasons for implementation of Re-engineering in manufacturing industry.
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